to increase the difficulty of the game. The pack introduced additional foes such as humanoid cats, giants wearing dinosaur skulls, and cyborgs, and Team Ninja made a key change to the camera system by which the on-screen action is displayed; players could now control the camera and change its viewing angle. Another feature of the pack was to enhance the combat engine; the new "Intercept" skill let players counter any enemy attack with the proper timing. Hurricane Pack 2 kept the enhancements of the first, but took place in an alternative world comprising only two regions, where players have to fight through several encounters to rescue Rachel from two new bosses (Nicchae and Ishtaros). This expansion introduced fiends who wield giant swords and cast fireballs. Team Ninja later compiled both expansion packs, and added new features, to create Ninja Gaiden Black. This game, which Itagaki viewed as the final version of Ninja Gaiden, went on sale on September 20, 2005. A few years later, Team Ninja upgraded the graphics of the game and ported it to the (PS3). This version was released as Ninja Gaiden Sigma on June 14, 2007. Black became an Xbox Original game on February 11, 2008. Online competition The Master Ninja Tournaments were a series of three online contests held by Microsoft and Tecmo in 2004. They took place over Xbox Live, and were open to participants in Europe, Japan, and North America. Winner selection was based on the scores achieved through playing Ninja Gaiden or its Hurricane Packs. Players had 14 to 24 days to complete the required games and submit their scores to an online scoreboard. The first two tournaments formed regional qualification stages for a live Ninja Gaiden Master Tournament World Championship, held on September 25 at the TGS 2004. Competition for places was intense, with both tournaments breaking records for online participation in Xbox Live events. Six of the highest scoring players from Europe and North America won bokkens bearing Itagaki's signature, and five regional winners were selected to proceed to the final. Here, the finalists simultaneously played a custom game drawn from Hurricane Pack 2 while commentators called out the action. They had 15 minutes to complete the game and post the highest score; the winner emerged only in the last 20 seconds, when Yasunori Otsuka cleared the game and outscored his rivals. At the award ceremony, the finalists received their